Refrigerator.



No. 824,387. EAT

s. A. sEWALL-& L. E. ABBBE. RBPRIGERATOR.

APPLIOATION I'ILED FEB. 18, 1,905.

ENTBD JUNE v276,51906.

2 SHEETS-SHEET 1.

WJTNESSES- THE/RA TTORNEY.

' To all whom it may concern:

Y Unirnn srarns 'rastrear ariston STEPHEN A. sEw'ALL AND LESLIE n. nenne, Vor nativas, coLoaAno.

REFRlGERTRt Specification of Letters )Patent atented J une 26. 1906.

Application led February 18,1905. Serial No. 246.315.

Be it known that we, STEPHEN A. SEWALL and LESLIE H. ABBEE, citizens of the United States of America, residing at Denver, in the county 'of Denver and State ofv Colorado, have invented certain new and useful 1mprovements in Refrigerators, of which the following is a specification.

Our invention relates to the class of devices used for the preservation of perishable food and commonly known as refrigerators. Its objects are to produce a device of the class named, which being most simple in construction may be manufactured at low cost, which, having revoluble shelves, perlmits any article deposited thereon to be brought within easy reach of the hand, which, being cylindricalin form, and thus devoid of angles and corners, prevents the accumulation of dirt and facilitates cleaning, and which, having removable and vertically-adjustable shelves, may readily be adapted for the accommodation of varied-sized vessels and merchandise.

Our construction, furthermore, insures perfect insulation of the ice and provision chambers from atmospheric infiuences, thus rendering the device, in addition to the abovementioned sanitary and labor-saving advantages, most economical in use.

We attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 represents the device in elevation;

Fig. 2, an enlarged vertical section therethrough; Fig. 3, a cross-section taken along the line 3 3, Fig. 2; Fig. 4, an enlarged view of the ltrack and wheels used for revolving the shelves; Fig. 5, a vertical section showing a modified form of our device; and Fig. a cross-section taken along line the 6 6, Fig. 5.

Similar reference characters refer to similar parts throughout the various views.

.The device consists of a double-walled cylindrical box or casing 5, the interior of which is divided into the provision-chamber 6 and a superposed ice-chamber 7. The former is provided with a series of revoluble vertically-adjustable shelves 8, access to which may be had by means of a door 9. The

'casing being open on top is surmounted by a chamber by a downwardly-extending drainpipe 14. Box 5 consists ci two .concentrically-located cylindrical casings 15 and 16, spaced from each other, the outer one 15 being provided with a preferably integral bot'- tom 17 and composed of fiber or other nonconductive material, whiley the inner casing 16, resting on said bottom, may be made of galvanized iron or other suitable substance. The annular chamber 18, formed between the walls of the two casings, is closed on top by a ring 19, thus providing a dead-air space around the icc and provision chambers, which effectively insulates them from the influences of the surrounding atmosphere. An opening 20 in the inner casing affords access to the provision-chamber and may be closed by the above-mentioned door 9, which forms part of casing 15: The annular chamber 18 at this point is sealed by partitions 21, extending vertically between the bottom 17 and the annular ring 19 at both sides of the door-opening 20. Both door 19 and the before-mentioned cover 10 are provided with recessed linings 22 and 23, the flanged edges of which are secured, respectively, to the inl side of the door and of the cover, thus providing the insulating dead-air spaces 24 and 25.

` lExtending vertically through the annular chamber 18 and communicating with the ice and provision chambers by means of openings 26 and 27, cut,res'pectively, in the upper and lower edges of casing 16, are the air-dues 28,' which conduct the warm air from chamber 6 into the ice-chamber in the direction of the arrows.

' To insure stability of the inner casing, as well as to strengthen the entire structure, vertically-extending cleats 29 are placed between and secured to the `ilues 28 and the outer casing 15. As mentionedv heretofore, the shelves 8 are revolubly mounted inside the inner casing 16, which to this end has been provided with a number of preferably equidistant horizontally-disposed series of brackets 30, adapted to support the circular rails- 31. Shelves 8 are provided at their lower surface withthree or more grooved wheels 32, rotatably mounted in appropriately constructed hangers 33, which are secured to the shelves byrivets 34 or other suitable means. Shelves 8 are diametricall smaller than the inside ofthe casing in' which they are mounted, leaving an annular s ace between the two for the free passage o the part ofthe casing.

. other repairs. y

,their rotary movement greatly facilitates the cooled air from the ice-chamber to the lower It is preferable that the number of series of 'brackets should exceed the number of rails and shelves, so that for the accommodation of unusually tall articles, such vases of eut flowers, the distance between two shelves may readily be increased by lifting the rail and the thereby-supported shelf out of one set of brackets and depositing same in the set above it or, should still more room beA required, by removing one or more of the rails and shelvesthro ugh opening 2() in the casing. The division between ice-chamber 7 and the thereunder-located provision-chamber o is effected by a shallow circular transv i;elydisposed Vpan 35, spaced from casing 1G and supported by a set of brackets 36, secured thereto. The bottom surface of pan 35 is preferably corrugated, as shown in the drawings, for the purpose of keeping the bottom of the thereon resting ice 37 out of contact with the water, which as the ice melts accumulates in the bottom ofthe pan. This water is, as mentioned heretofore, drained from pan 35 and conducted. yto 'the pan 13 by a pipeI 14, which communicates with the ice-pan by an openin f cut in its lower surface. Pipe ll is prefera )ly placed in a correspondinglyshaped recess lea in the inner casing 16, which arrangement not only prevents interference with the revolving shelves, but renders the pipe accessible in case of leaks or As the majority of articles deposited in a refrigerator are round, the circular shelves have the" advantage of ador-ding better ac commodation for the storage of dishes, etc., than a square shelf of equal dimensions, while deposition and removal of articles in and from the box.

In keeping with the law of nature that warm air rises and cold air falls a constant current of cooled air is created around the articles deposited in chamber 6 by means ofthe flues 23, which, drawing the heated air from the provision-chamber through vopenings 27, conducts it through openings 26 into the icechamber. Here the air is cooled by contact with the ice 37 to subsequently reenter chamber 6 through the annular space between pan 35 and the casing.

The form of our device illustrated in Figs. 5 and 6 is more especially adapted for use in hotels, boarding-houses, and other large establishments.

The general construction of the refrigerator is practically the same as the one heretofore described,with the exception that the capacity o'f the boX has been doubled by providing two adjoining sets of shelves, to which end the outer and the inner casings 38 and 39,

' scribed.

e. either side of the upright, support the Frooved rollers LL7' of shelves as heretofore derlhe cover or lid 49 is formed 'to The correspond with the elliptical casing. lo

opening 5() in the inn-f. asing lv been made sul liciently large to afford access to both of shelves, and the door 5l has been pro* vided with a series of stationary shelves 52, thus increasing the storing capacity of the box. Similar shelves 53 may be disposed. along the inner wall of the provision-chopposite opening 5l), as showniu the dran ings.

54 represents the airiues, 55 'the openings in the ice-chamber, and .5o those in the provision-chamber.

No wish it ui'iderstoori tnat variations in the form and arrangement of the various parts comprised inv our device, as weil in. the manner of supporting the rero'ving shelves, may be availed ofwithin the principle of our invention.

Having thus described our in"v we claim isd non, what l. A refrigerator comprising a cylindrica casing havmg ice and a provision compa-r,

imei

3. A refrig :ator comprising a c g haying an ice and. a provision compartir. n raus mounted to be vertically adjustable within M5 the latter and shelves having wheels adapted. to be presented in operative relation to said rails. ,i

In testimony whereof we have .ai signatures in presence of two witness STEPHEN A. Sl? if LESLE li. AB

Witn ceses:

(. J. itompixne'r,

M. Sfruni: 

